package test;

public class 晚间测试 {

        public static void main (String[]args){
            int i = 10, j = 25, x = 30;
            switch (j - i) {
                case 15:
                    x++;
                    System.out.println(x);
                case 16:
                    x += 2;
                case 17:
                    x += 3;
                default:
                    --x;
            }
        }

    }

